﻿/* 
   * 使用例子:format="yyyy-MM-dd hh:mm:ss"; 
   */
Date.prototype.format = function (format) {
   
    var o = {
        "M+": this.getMonth() + 1, // month 
        "d+": this.getDate(), // day 
        "h+": this.getHours(), // hour 
        "m+": this.getMinutes(), // minute 
        "s+": this.getSeconds(), // second 
        "q+": Math.floor((this.getMonth() + 3) / 3), // quarter 
        "S": this.getMilliseconds()
        // millisecond 
    }

    if (/(y+)/.test(format)) {
        format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4
        - RegExp.$1.length));
    }

    for (var k in o) {
        if (new RegExp("(" + k + ")").test(format)) {
            format = format.replace(RegExp.$1, RegExp.$1.length == 1
            ? o[k]
            : ("00" + o[k]).substr(("" + o[k]).length));
        }
    }
    return format;
}